'We have come a long way in a short period of time,' says Kerry

US Secretary of State John Kerry released a statement on Saturday, following the announcement that Iran the six world powers will extend nuclear talks. "As President Obama and our entire administration has made clear, we are committed to testing whether we can address one of the world’s most pressing priorities – ensuring that Iran does not obtain a nuclear weapon – through the diplomatic negotiations in which we and our international partners are currently engaged."

He added that the effort to reach an agreement was "as intense as it is important," adding that the US has come a long way in a short period of time.